Cyanobacteria are important to the evolution and advancements of other life on Earth because theyA) were the first life form on earth.
B) produced oxygen from photosynthesis.
C) were the first group of organisms to leave a fossil record.
D) were thought to have become mitochondria in the cells of animals.

Answers

Answer 1
Answer: B is the answer for USA test Prep
Answer 2
Answer: B; it was produced from photosynthesis

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How are frog bones similar to trees?

Answers

The bones of the frog have similarities to trees. The frog's bones form a growth ring every year, in which it is what the Scientists find out about the frog's age (by counting it.) The age of trees can also be find in its rings (inside the trunk.)

Which genotype belongs to an offspring that homozygous recessive for both traits

Answers

An individual who is homozygous recessive for two traits will have a genetoype with the general formula.

A _____ is a stem growing from a plant that produces roots, stems, and leaves at various points. A common example is the strawberry plant. stolon stomata rhizome mitospore

Answers


The answer is stolon.

Answer:

Stolon

Explanation:

Multicellular organisms arose because _____.

Answers

The answer is because a part of the organism could die and the organism could continue to live. 

In the very changing environment, such was when multicellular organisms evolved, the organisms that could adapt to that environment, survived. If in some moment multicellular organism emerged and its multicellularity helped him to survive, that is the reason this characteristic remained. On of the explanation is that multicellularity allows the organism to continue to live even if a part of the organism dies.

What makes a flower complete versus incomplete?

Answers

An incomplete flower is a flower without one or more of the normal parts. 

A complete flower is a flower having all four parts such as sepals, petals, stamens, and carpels.

Plants grow in response to stimuli. These stimuli can come fromA. a location in the flower.
B. plants in another field.
C. the environment.
D. a location in the xylem.

Answers

The stimuli plants respond to will be found in the environment. Example....plants grow towars the sun.

The answer is: C. The environment